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The lentiform nucleus (or lentiform complex, lenticular nucleus, or lenticular complex) are the putamen (laterally) and the globus pallidus (medially), collectively. Due to their proximity, these two structures were formerly considered one, however, the two are separated by a thin layer of white matter—the external medullary lamina—and are functionally and connectionally distinct.
The putamen (/ p j u ˈ t eɪ m ə n /; from Latin, meaning "nutshell") is a subcortical nucleus with a rounded structure, in the basal ganglia nuclear group. It is located at the base of the forebrain and above the midbrain. The putamen and caudate nucleus together form the dorsal striatum.
There are a total of 8 bones in the legs and 52 in the feet. Femur (2) Patella or kneecap (2) Tibia (2) Fibula (2) Foot (52 bones in total, 26 per foot) Tarsus. Calcaneus or heel bone (2) Talus (2) Navicular bone (2) Medial cuneiform bone (2) Intermediate cuneiform bone (2) Lateral cuneiform bone (2) Cuboid bone (2) Metatarsals (10)
Instead, the putamen was associated with the pallidum in what was called the nucleus lenticularis or nucleus lentiformis. A thorough reconsideration by Cécile and Oskar Vogt (1941) simplified the description of the basal ganglia by proposing the term striatum to describe the group of structures consisting of the caudate nucleus, the putamen ...
The medial lemniscus carries axons from most of the body and terminates by synapsing with third-order neurons in the ventral posterolateral nucleus of the thalamus. [3] at the level of the mamillary bodies. Sensory axons transmitting information from the head and neck via the trigeminal nerve synapse at the ventral posteromedial nucleus of the ...
The efferent bundle is constituted first of the ansa and lenticular fasciculus, then crosses the internal capsule within and in parallel to the Edinger's comb system then arrives at the laterosuperior corner of the subthalamic nucleus and constitutes the field H 2 of Forel, then H, and suddenly changes its direction to form field H 1 that goes to the inferior part of the thalamus.
[2] [3] [4] The striatum is made up of the caudate nucleus and the lentiform nucleus. [7] [8] However, some authors believe it is made up of caudate nucleus, putamen, and ventral striatum. [9] The lentiform nucleus is made up of the larger putamen, and the smaller globus pallidus. [10] Strictly speaking the globus pallidus is part of the striatum.
This area of the basal ganglia receives input from another area, called the striatum, which has two parts, the caudate nucleus and the putamen. This data is routed to the thalamus, either directly or indirectly. In the case of the interna, one area of the globus pallidus, the structure can feed directly to the thalamus.